def get(signer,
channel_identifier,
reward_amount,
token_network_address,
nonce=0,
v=27):
private_key = get_private_key(signer)
signature = sign_reward_proof(
private_key,
channel_identifier,
reward_amount,
token_network_address,
int(token_network.functions.chain_id().call()),
nonce,
v,
)
return (
channel_identifier,
reward_amount,
token_network_address,
int(token_network.functions.chain_id().call()),
nonce,
signature,
)
def get(
signer: HexAddress,
channel_identifier: int,
reward_amount: int,
token_network_address: HexAddress,
monitoring_service_contract_address: HexAddress,
nonce: int = 0,
v: int = 27,
) -> Tuple[int, int, HexAddress, int, int, bytes]:
private_key = get_private_key(signer)
signature = sign_reward_proof(
private_key,
channel_identifier,
monitoring_service_contract_address,
reward_amount,
token_network_address,
int(token_network.functions.chain_id().call()),
nonce,
v,
)
return (
channel_identifier,
reward_amount,
token_network_address,
int(token_network.functions.chain_id().call()),
nonce,
signature,
)
def f(monitoring_service_contract: Contract) -> Dict:
# Create two parties and a channel between them
(A, B) = get_accounts(2, privkeys=["0x" + "1" * 64, "0x" + "2" * 64])
deposit_to_udc(B, REWARD_AMOUNT)
channel_identifier = create_channel(A, B)[0]
# Create balance proofs
balance_proof_A = create_balance_proof(channel_identifier,
B,
transferred_amount=10,
nonce=1)
balance_proof_B = create_balance_proof(channel_identifier,
A,
transferred_amount=20,
nonce=2)
# Add signatures by non_closing_participant
closing_signature_A = create_balance_proof_countersignature(
A, channel_identifier, MessageTypeId.BALANCE_PROOF,
*balance_proof_A)
non_closing_signature_B = create_balance_proof_countersignature(
B, channel_identifier, MessageTypeId.BALANCE_PROOF_UPDATE,
*balance_proof_B)
reward_proof_signature = sign_reward_proof(
privatekey=get_private_key(B),
monitoring_service_contract_address=monitoring_service_contract.
address,
chain_id=token_network.functions.chain_id().call(),
non_closing_signature=non_closing_signature_B,
reward_amount=REWARD_AMOUNT,
)
# close channel
token_network.functions.closeChannel(
channel_identifier, B, A, *balance_proof_A,
closing_signature_A).call_and_transact({"from": A})
# calculate when this MS is allowed to monitor
(settle_block_number,
_) = token_network.functions.getChannelInfo(channel_identifier, A,
B).call()
first_allowed = monitoring_service_contract.functions.firstBlockAllowedToMonitor(
closed_at_block=settle_block_number - TEST_SETTLE_TIMEOUT_MIN,
settle_timeout=TEST_SETTLE_TIMEOUT_MIN,
participant1=A,
participant2=B,
monitoring_service_address=ms_address,
).call()
# return args for `monitor` function
return {
"participants": (A, B),
"balance_proof_A": balance_proof_A,
"balance_proof_B": balance_proof_B,
"non_closing_signature": non_closing_signature_B,
"reward_proof_signature": reward_proof_signature,
"channel_identifier": channel_identifier,
"first_allowed": first_allowed,
}
def print_gas_monitoring_service(
token_network: Contract,
monitoring_service_external: Contract,
get_accounts: Callable,
create_channel: Callable,
create_balance_proof: Callable,
create_balance_proof_countersignature: Callable,
service_registry: Contract,
custom_token: Contract,
deposit_to_udc: Callable,
print_gas: Callable,
get_private_key: Callable,
create_service_account: Callable,
web3: Web3,
) -> None:
"""Abusing pytest to print gas cost of MonitoringService functions"""
# setup: two parties + MS
(A, MS) = get_accounts(2)
B = create_service_account()
reward_amount = TokenAmount(10)
deposit_to_udc(B, reward_amount)
# register MS in the ServiceRegistry contract
call_and_transact(custom_token.functions.mint(SERVICE_DEPOSIT * 2),
{"from": MS})
call_and_transact(
custom_token.functions.approve(service_registry.address,
SERVICE_DEPOSIT),
{"from": MS},
)
call_and_transact(service_registry.functions.deposit(SERVICE_DEPOSIT),
{"from": MS})
# open a channel (c1, c2)
channel_identifier = create_channel(A, B)[0]
# create balance and reward proofs
balance_proof_A = create_balance_proof(channel_identifier,
B,
transferred_amount=10,
nonce=1)
closing_sig_A = create_balance_proof_countersignature(
participant=A,
channel_identifier=channel_identifier,
msg_type=MessageTypeId.BALANCE_PROOF,
**balance_proof_A._asdict(),
)
balance_proof_B = create_balance_proof(channel_identifier,
A,
transferred_amount=20,
nonce=2)
non_closing_signature_B = create_balance_proof_countersignature(
participant=B,
channel_identifier=channel_identifier,
msg_type=MessageTypeId.BALANCE_PROOF_UPDATE,
**balance_proof_B._asdict(),
)
reward_proof_signature = sign_reward_proof(
privatekey=get_private_key(B),
monitoring_service_contract_address=monitoring_service_external.
address,
chain_id=token_network.functions.chain_id().call(),
token_network_address=token_network.address,
non_closing_participant=B,
reward_amount=reward_amount,
non_closing_signature=non_closing_signature_B,
)
# c1 closes channel
call_and_transact(
token_network.functions.closeChannel(
channel_identifier, B, A,
*balance_proof_A._asdict().values(), closing_sig_A),
{"from": A},
)
mine_blocks(web3, 4)
# MS calls `MSC::monitor()` using c1's BP and reward proof
txn_hash = call_and_transact(
monitoring_service_external.functions.monitor(
A,
B,
balance_proof_B.balance_hash,
balance_proof_B.nonce,
balance_proof_B.additional_hash,
balance_proof_B.original_signature,
non_closing_signature_B, # non-closing signature
reward_amount,
token_network.address, # token network address
reward_proof_signature,
),
{"from": MS},
)
print_gas(txn_hash, CONTRACT_MONITORING_SERVICE + ".monitor")
mine_blocks(web3, 1)
# MS claims the reward
txn_hash = call_and_transact(
monitoring_service_external.functions.claimReward(
channel_identifier, token_network.address, A, B),
{"from": MS},
)
print_gas(txn_hash, CONTRACT_MONITORING_SERVICE + ".claimReward")
def f(monitoring_service_contract: Contract) -> Dict:
# Create two parties and a channel between them
(A, B) = get_accounts(2, privkeys=[bytes([1] * 32), bytes([2] * 32)])
deposit_to_udc(B, REWARD_AMOUNT)
channel_identifier = create_channel(A, B)[0]
# Create balance proofs
balance_proof_A = create_balance_proof(
channel_identifier, B, transferred_amount=10, nonce=1
)
balance_proof_B = create_balance_proof(
channel_identifier, A, transferred_amount=20, nonce=2
)
# Add signatures by non_closing_participant
closing_signature_A = create_balance_proof_countersignature(
participant=A,
channel_identifier=channel_identifier,
msg_type=MessageTypeId.BALANCE_PROOF,
**balance_proof_A._asdict(),
)
non_closing_signature_B = create_balance_proof_countersignature(
participant=B,
channel_identifier=channel_identifier,
msg_type=MessageTypeId.BALANCE_PROOF_UPDATE,
**balance_proof_B._asdict(),
)
reward_proof_signature = sign_reward_proof(
privatekey=get_private_key(B),
monitoring_service_contract_address=monitoring_service_contract.address,
chain_id=token_network.functions.chain_id().call(),
token_network_address=token_network.address,
non_closing_participant=B,
non_closing_signature=non_closing_signature_B,
reward_amount=REWARD_AMOUNT,
)
# close channel
call_and_transact(
token_network.functions.closeChannel(
channel_identifier,
B,
A,
*balance_proof_A._asdict().values(),
closing_signature_A,
),
{"from": A},
)
# calculate when this MS is allowed to monitor
first_allowed = monitoring_service_contract.functions.firstBlockAllowedToMonitorChannel(
token_network=token_network.address,
channel_identifier=channel_identifier,
closing_participant=A,
non_closing_participant=B,
monitoring_service_address=ms_address,
).call()
# return args for `monitor` function
return {
"participants": (A, B),
"balance_proof_A": balance_proof_A,
"balance_proof_B": balance_proof_B,
"non_closing_signature": non_closing_signature_B,
"reward_proof_signature": reward_proof_signature,
"channel_identifier": channel_identifier,
"first_allowed": first_allowed,
}
def print_gas_monitoring_service(
token_network: Contract,
monitoring_service_external: Contract,
get_accounts: Callable,
create_channel: Callable,
create_balance_proof: Callable,
create_balance_proof_countersignature: Callable,
service_registry: Contract,
custom_token: Contract,
deposit_to_udc: Callable,
print_gas: Callable,
get_private_key: Callable,
create_service_account: Callable,
) -> None:
""" Abusing pytest to print gas cost of MonitoringService functions """
# setup: two parties + MS
(A, MS) = get_accounts(2)
B = create_service_account()
reward_amount = 10
deposit_to_udc(B, reward_amount)
# register MS in the ServiceRegistry contract
custom_token.functions.mint(SERVICE_DEPOSIT * 2).call_and_transact({"from": MS})
custom_token.functions.approve(service_registry.address, SERVICE_DEPOSIT).call_and_transact(
{"from": MS}
)
service_registry.functions.deposit(SERVICE_DEPOSIT).call_and_transact({"from": MS})
# open a channel (c1, c2)
channel_identifier = create_channel(A, B)[0]
# create balance and reward proofs
balance_proof_A = create_balance_proof(channel_identifier, B, transferred_amount=10, nonce=1)
closing_sig_A = create_balance_proof_countersignature(
A, channel_identifier, MessageTypeId.BALANCE_PROOF, *balance_proof_A
)
balance_proof_B = create_balance_proof(channel_identifier, A, transferred_amount=20, nonce=2)
non_closing_signature_B = create_balance_proof_countersignature(
B, channel_identifier, MessageTypeId.BALANCE_PROOF_UPDATE, *balance_proof_B
)
reward_proof_signature = sign_reward_proof(
privatekey=get_private_key(B),
monitoring_service_contract_address=monitoring_service_external.address,
chain_id=token_network.functions.chain_id().call(),
reward_amount=reward_amount,
non_closing_signature=non_closing_signature_B,
)
# c1 closes channel
txn_hash = token_network.functions.closeChannel(
channel_identifier, B, A, *balance_proof_A, closing_sig_A
).call_and_transact({"from": A})
token_network.web3.testing.mine(4)
# MS calls `MSC::monitor()` using c1's BP and reward proof
txn_hash = monitoring_service_external.functions.monitor(
A,
B,
balance_proof_B[0], # balance_hash
balance_proof_B[1], # nonce
balance_proof_B[2], # additional_hash
balance_proof_B[3], # closing signature
non_closing_signature_B, # non-closing signature
reward_amount,
token_network.address, # token network address
reward_proof_signature,
).call_and_transact({"from": MS})
print_gas(txn_hash, CONTRACT_MONITORING_SERVICE + ".monitor")
token_network.web3.testing.mine(1)
# MS claims the reward
txn_hash = monitoring_service_external.functions.claimReward(
channel_identifier, token_network.address, A, B
).call_and_transact({"from": MS})
print_gas(txn_hash, CONTRACT_MONITORING_SERVICE + ".claimReward")